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Re: st: Count observations


From   Jeph Herrin <stata@spandrel.net>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Count observations
Date   Tue, 23 Jul 2013 11:46:31 -0400

Perhaps you want the number of A fees for each firm?

 bys id : egen Afees=count(fee=="A")



On 7/23/2013 10:50 AM, Miguel Angel Duran Munoz wrote:
Hi, Statalisters. I have the following doubt. My dataset is arranged in
the following way. I have a variable that identifies firms (say id).
Another variable describes whether different types of fees (eg, A B C)
applies to a firm. Accordingly, the dataset looks similar to

Id    Type-of-fee

1          A
1          B
1          C
2          C
2          A
3          A
4          B
4          .
4          A

I would like to know, for instance, the number of A fees that there are. I
have used -count- but I am not able to get what I want. Will you please
help me?

Thanks in advance.

Miguel.


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